feat: add server assembly and stdio entry

src/cli.ts

@@ -0,0 +1,10 @@
+export const parseArgs = (
+    argv: string[],
+    env: NodeJS.ProcessEnv = process.env
+): { configPath?: string } => {
+    const flagIndex = argv.indexOf('--config')
+    if (flagIndex !== -1 && argv[flagIndex + 1]) {
+        return { configPath: argv[flagIndex + 1] }
+    }
+    return { configPath: env.DBMOLE_CONFIG }
+}

src/index.ts

@@ -1 +1,35 @@
-export const placeholder = true
+import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'
+import { parseArgs } from './cli.js'
+import { createRegistry } from './config/registry.js'
+import { defaultStorePath } from './config/store.js'
+import { createManager } from './db/manager.js'
+import { createServer } from './server.js'
+
+const main = async () => {
+    const { configPath } = parseArgs(process.argv.slice(2))
+    const registry = createRegistry({ storePath: defaultStorePath(), configPath })
+    const manager = createManager(registry)
+    const server = createServer(registry, manager)
+
+    let shuttingDown = false
+    const shutdown = async () => {
+        if (shuttingDown) {
+            return
+        }
+        shuttingDown = true
+        await manager.disposeAll().catch(() => {})
+        process.exit(0)
+    }
+    process.on('SIGINT', shutdown)
+    process.on('SIGTERM', shutdown)
+    process.stdin.on('close', shutdown)
+
+    await server.connect(new StdioServerTransport())
+    console.error('dbmole: MCP server listening on stdio')
+}
+
+main().catch((error) => {
+    const message = error instanceof Error ? error.message : String(error)
+    console.error('dbmole: fatal: ' + message)
+    process.exit(1)
+})

src/server.ts

@@ -0,0 +1,16 @@
+import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js'
+import type { Registry } from './config/registry.js'
+import type { Manager } from './db/manager.js'
+import { registerConnectionTools } from './tools/connections.js'
+import { registerQueryTools } from './tools/query.js'
+import { registerSchemaTools } from './tools/schema.js'
+
+export const SERVER_VERSION = '0.1.0'
+
+export const createServer = (registry: Registry, manager: Manager): McpServer => {
+    const server = new McpServer({ name: 'dbmole-mcp', version: SERVER_VERSION })
+    registerConnectionTools(server, registry, manager)
+    registerQueryTools(server, manager)
+    registerSchemaTools(server, manager)
+    return server
+}